检测斜拉索张力的振动法及其应用  

Vibration Method for Measurement of Cable Tension

作　　者：刘志军[1] 陈国平[1] 党志杰[2] 

机构地区：[1]南京航空航天大学航空宇航学院,南京210016 [2]中铁大桥局集团桥科院有限公司,武汉430034

出　　处：《南京航空航天大学学报》2006年第5期609-612,共4页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：介绍了检测斜拉索张力的振动方法,并结合现场测试工作讨论了索力测量系统的硬件和软件设计。针对环境随机激励下斜拉索的低阶自振频率不容易识别的问题,研究了瞬态激励的检测试验方案和检测技术。工程实际应用表明:振动法检测斜拉索张力简便实用,所需仪器设备极易携带,检测结果可靠、精度高,且能满足工程应用要求。Based on the field measurement the hardware and software design of a measurement system of cable tension is discussed. Considering that low-order natural frequencies of the stayed cable are not easy to be identified when the random vibration method is applied to cable tension measurement and monitor in engineering, the testing program and the measuring technique based on transient excitation are investigated according to the vibration nature of the cable in cable stayed bridges. The method can be widely used for field measurement of cable tension during the construction and operation of cable structure. The practical application shows that the vibration method for measurement of cable tension is practical and can meet the high-precision requirements in practical engineering.

关 键 词：斜拉索 索力 振动法 测量 

分 类 号：U443.38[建筑科学—桥梁与隧道工程] O329[交通运输工程—道路与铁道工程]